Appendix Table 4.
Expected Counts for 1000 Women From the U.S. Mammography Screening Population Aged 50-59 y: Benign Nonproliferative and Benign Proliferative Combined
| Variable | Reference Diagnosis, n |
Total, n | |||
|---|---|---|---|---|---|
| Benign | Atypia | DCIS | Invasive Breast Cancer | ||
| Pathologist interpretation | |||||
| Benign* | 611 | 13.5 | 4.0 | 1.3 | 629.8 |
| Atypia | 26.5 | 18.6 | 4.3 | 0.0 | 49.4 |
| DCIS | 7.1 | 6.7 | 51.3 | 8.8 | 73.9 |
| Invasive breast cancer | 3.8 | 0.2 | 1.6 | 241.2 | 246.8 |
| Total women, n | - | - | - | - | 1000 |
DCIS = ductal carcinoma in situ.
*
Benign nonproliferative and benign proliferative values from Appendix Table 3 are combined.